Slack tub



Nov.. 30 1926.

J. D.y LEMEX ET AL `SLACK TUB Filed Nov. 13 1923 Patented Nov. 3Q, 1926.

STATES JQ-N D. LEMEX AND CHARLES E. GALLMAll',

OF TULS, OJ'ILADtLA, ASSIGNOBJS TO OIL WELL SUPPLY COMPANY, 0F FENHBYLVANIA, A. CGRPORATON OF PENNSYLVANIA.

SLAG:

Application filed November This invention is for an improvement in a slack tub tor use in the i'ield in connection with the quenching; and tempering' ot tools.

It is common practice in the oil tields to use a receptacle for water, known in the ar as a slack tub, into which drilling` tools are dipped to be tempered after having' been dressed.

The tool dresser in the oil .fields is not gein erally skilled in the tempering; of steel, and this, together with the improper design ot the tubs now provided, results in a larpje quantity ot steel bits being ruined by inetficient tempering.

The present invention proposes to provide tub parti .ilarly designed tor use in the ield, which will facilitate pro )er manipulation ot the tool in the tub and bring,- the cold water to the cutting; edfres oi the bit, insuring' more even and etlicient temperingr ot' the bits.

Other objects et the invention are to provide a tub et simple construction which may be cheaply manufactured and easily cleaned, and which will not be readily upset during the manipulation et the tools therein.

The invention may be readily understood by reference to the accompanying drawings, in which:

Fig. 1 is a top plan view ot a tub embodyinn' our invention; and

Fig'. 2 is an end view ot the t-ub.

The bottom 5 and sides 6 ot the tub are formed from a single sheet ot rolled steel, to which the end plates 7 are. secured. The sides 6 are preterably inclined, so that the tub is wider at the bottom than at the top.

Secured in the tub on each of the end plates are cleats 8 having); sockets 9 therein `tor the reception of parallel pipes or other suitable tool rests 10. These socket-s are so arranged that the rests l0 may be lifted out whenever it is desired to do so. The rests extend longitudinally ot the tank, and are Well below the water line. indicated in Fig. 2 by the dot and dash line.

Resting' on the bottom of the tank is a water distributing outlet ll, preferably in the form ot' a perforated pipe. Connected with water outlet ll is a horizontal supply pipe l2 leading to one corner ot the tank, where it is joined to a vertical pipe B adapted to be joined at its upper end to a source ot water or other tempering fluid supply.

TUB.

13, 1923. Serial No. 74,540.

rlhe water distributor and associated pipes are so arranged that they may be removably set in the bottom of the tub with the distributor substantially centered.

A water overllow is provided at 14, near the top ot the tank. and a removable plug l5, near the bottom, is provided to enable the tub to be drained `for cleaning' or other purposes.

The tub may have structural bars 16 secured to the bottom thereof to provide skids and to keep the bottom ot the tub oli the ground.

In use, the heated tool is lowered into the tub until it is supported on the rests l0. lt is lowered in such manner that its lower end will be just above the water or tempering' tlnid distributor ll. The cold incoming' tluid will.y therefore, be directed against the bottom ot the bit just where it should come tor t-he moet etlicient results. The warm water flows out the top through the outlet 14:.

reason ot the tank beine' wider at the bottom, it is not easily upset tluiring` the manipulation ot the bit around the tub., and consequently, the bit may be manipulated with greater ease in that the tool dresser need not 'tear the tippingy over ot the tub. The inlet water distributor and the rests are easily removable and replaceable, consequently, the tub may be easily cleaned.

Vile claim as our invention:

l. A slack tub comprising a bottom, side, and end members, the side members bein inclined toward each other whereby the tub is wider at the bottom than at the top, removable tool rests within the tub, supporting means on the end members for the tool rests, and means positioned below the tool rests tor introducingg` tempering' fluid into the tub below the said rests.

2.1i slack tub comprising' a receptacle having` an integral bottom and sides. the sides being inclined toward each other, whereby the tank is wider at the bottom than at the top, vertical end members tor the tank, a cleat on each end member, tool supporting means removably n'etained fon the cleats extending from one end ot the tank to the other, and centrally positioned means below the supporting` means for introducing tempering); fluid into the receptacle below the support-ing' means.

3. A slack tub comprising' a receptacle having an integral bottom and Sides, the sides being` inclined toward each other, whereby the tank is wider at the bottom than at the top, vertical end members for the tank, a, cleat on each end members tool Supporting means removablv retained on the cleats extending from one end of the tank to the other, centrally positioned means below the Supporting' means for introducing` tempering fluid into the receptacle below the 10 supporting means, and structural bars secured to the bottom of the receptacle and providing` skids therefor.

In testimony whereof We aEX our signatures.

JOHN D. LEMEX. CHARLES E. GALLMAN. 

